Card rotation means that certain older cards are no longer permitted in competitive play for Disney Lorcana
Its downside of needing you to discard a ton of cards becomes upside once Replenish lets you play them all for free
The most common strategy for fighting discard later in the game is to either play everything all the time, which some decks have the ability to do, or to hold land in your hand to shield you
Theres just something so satisfying about taking your opponents best creature, swinging in with it, and then sacrificing it for extra value, literally throwing their threats back against them
Then, you play against another pair of players in a one-game match
As Eric has already discussed in far more interesting ways, Floodborn is going to be a major part of Lorcana's storytelling, and over the coming sets (the fifth is currently being designed) we'll see Floodborn expand and, hopefully, make more sense